3GS screen stuck in magnified view, how do I undo this?

yesterday out of nowhere my home screen became magnified (so that only four icons fit on the screen at one time) I can somewhat move around the screen if i hold my finger on the edge of the screen so it slides that way, and the icons work if tapped, however, when you enter the next screen, it automatically zooms in again so I can barely navigate it! I tried the standard turn it off and on again, press and hold home button and power button simulataneously, and syncing to my mac, but it still does the same thing! any ideas?

Also, if you wan't to keep this from happening again, go to Settings>General>Accessibility>Zoom and turn it off. Otherwise, if you want to keep that feature at least go there and you can read the instructions on how to operate this function.